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Table 2 Comparison of PFT results before and after HPT (n = 30)

From: Clinical efficacy of short-term pre-operative halo-pelvic traction in the treatment of severe spinal deformities complicated with respiratory dysfunction

Parameters of PFT Pre-traction Post-traction p value
FVC (L) 0.91 ± 0.42 1.18 ± 0.53 p < 0.001
FVC % 34.15 ± 13.98% 44.18 ± 16.26% p < 0.001
FEV1 (L) 0.79 ± 0.41 1.02 ± 0.44 p < 0.001
FEV1% 34.10 ± 15.63% 44.25 ± 17.43% p < 0.001